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Hazardous Weather Conditions
Current conditions at
Decatur Airport (KDEC)
Lat: 39.83°NLon: 88.87°WElev: 670ft.
Fair
71°F
22°C
| Humidity | 81% |
| Wind Speed | W 7 mph |
| Barometer | 29.96 in (1013.9 mb) |
| Dewpoint | 65°F (18°C) |
| Visibility | 10.00 mi |
| Last update | 14 Oct 5:54 am CDT |
Extended Forecast for
Clinton IL
Today

High: 74 °F
Chance
ShowersTonight
Low: 58 °F
Mostly Cloudy
then Slight
Chance
T-stormsThursday

High: 73 °F
Showers
Thursday Night

Low: 47 °F
Showers and
BreezyFriday

High: 56 °F
Partly Sunny
and BreezyFriday Night
Low: 36 °F
Mostly Clear
and Breezy
then Areas
FrostSaturday

High: 58 °F
Areas Frost
then SunnySaturday Night

Low: 38 °F
Clear
Sunday

High: 69 °F
Sunny
Detailed Forecast
Today
A chance of showers and thunderstorms. Mostly cloudy, with a high near 74. North northeast wind 5 to 10 mph. Chance of precipitation is 50%.
Tonight
A slight chance of showers before 1am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 58. East northeast wind 10 to 14 mph, with gusts as high as 17 mph. Chance of precipitation is 20%.
Thursday
Showers and thunderstorms before 10am, then showers likely and possibly a thunderstorm between 10am and 4pm, then a chance of showers and thunderstorms after 4pm. High near 73. East wind around 10 mph becoming south southwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely and possibly a thunderstorm before 7pm, then showers between 7pm and 1am. Low around 47. Breezy, with a west southwest wind 13 to 22 mph becoming northwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Partly sunny, with a high near 56. Breezy, with a northwest wind 24 to 26 mph, with gusts as high as 34 mph.
Friday Night
Areas of frost after 5am. Otherwise, mostly clear, with a low around 36. Breezy, with a north wind 15 to 20 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 23 mph.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 58. Light and variable wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Clear, with a low around 38.
Sunday
Sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Partly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 76.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Clinton IL
40.15°N 88.95°W (Elev. 715 ft)
40.15°N 88.95°W (Elev. 715 ft)
5:46 am CDT Oct 14, 2026
6am CDT Oct 14, 2026-6pm CDT Oct 20, 2026



